Substation Panels

Contents Products and Portfolio Relay Panels Control Panels Special Panels

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Standard Features

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Manufacturing Facilities

12

Processes and Activities

13

Quality Control and Assurance

15

SCADA System

16

References

18

Training

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Quality Policy

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Products Portfolio “The Relays, Control and custom built Panels are supplied for Generation Plants and Substations Up to 380 Kv”

1. Relay Panels Relay Panels are built with main and auxiliary relays for power system protection at transmission and distribution ends.

A. Transformer Relay Panel For protection of distribution transformers of all rating

Main protection includes: - Differential protection - REF protection (Residual Earth Fault) - SEF protection (Sensitive Earth Fault) - Over current protection 

   - Breaker failure protection

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B. Underground Feeder Relay Panel For protection of distribution line

Main protection includes: -

Line differential protection Distance protection Directional over current protection Breaker failure protection Auto re-close & synchronizing check scheme

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Products Portfolio C. Bus Coupler Relay Panel For protection of coupling two buses

Main protection includes: - Over current protection - Breaker failure protection

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D. Bus Section Relay Panel For protection of two sections of a bus

Main protection includes: - Over current protection - Breaker failure protection

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Products Portfolio E. Busbar Protection Relay Panel For protection of busbar

Main protection includes: - Busbar differential protection - Breaker failure protection

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F. Load Shedding Panel For protection of low voltage feeder/line

Main protection includes: - Over voltage/under voltage protection - Over frequency/under frequency protection

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Products Portfolio G. Transformer Auto Changeover Panel Automatic Changeover Switching Equipment (ACSE) Automatic Bus Transfer Scheme (ABTS)             !  "

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2. Control Panels Control Panels are built with measuring and control devices to control the switching equipment, to measure the energy and to provide annunciation at the transformer and distribution ends.

A. Transformer Control Panel To control switching equipment in transformer bay, measurement of energy and annunciation along with synchronizing relay.

B. Synchronizing Panel For manual synchronization of bay/bus.

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Products Portfolio C. Feeder / Line Control Panel To control switching equipment in line/feeder bay, measurement of energy and annunciation along with synchronizing relay.

D. Bus Coupler Control Panel To control switching equipment in coupler bay, measurement of energy and annunciation along with synchronizing relay.

E. Bus Section Control Panel To control switching equipment in bus section bay, measurement of energy and annunciation along with synchronizing relay.

F. Remote Tap Changer Control Panel (RTCC) / Automatic Voltage Control Panel (AVC) To control the low voltage side of the transformer and maintain voltage.

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Products Portfolio 3. Special Panels A. Annunciator & Marshalling Kiosk Panel To display all characteristics of signals in a substation; it includes continuous signal recording and printing.

B. Mosaic Control Panel To control switching equipment and for measurement of energy in all bays Bay wise control and indication arrangement is built with mosaic tiles in the front side of the panel. Use of  #       !   

future requirements. All in one compact control panel, due to small size of mosaic control switches, mosaic indication and semaphore indicators - control, measurement, indication and architecture is compacted in a smaller area.

C. Metering Panels To measure the energy for tariff

D. Data Retrieval / Station Evaluation Panel (DTR/SEP) To communicate relays in all panels through one system Its major objective is to download and upload data from and to a protection and measurement equipment in a substation located in a remote area from a master station at headquarters.

E. Custom Built Panels As per a customer’s requirement

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Standard Features

Product Standards The panels are manufactured as per national and international standards. The general standards followed are: $ Z= |}~